Transmitter.



No. 689,889. Patented Dec. 3|, I90I. 0. L. KLEBER.

TRANSMITTER.

(Application filed Sept. 10, 1900.) (No Model.)

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UNiTEn STaTEs PATENT EEICE.

OSCAR L. KLEBER, OF PITTSBURG, PENNSYLVANIA.

TRANSMITTER.

SPECIFICATION forming part of Letters Patent No, 689,889, dated December 31, 1901.

Application iiled September 10| 1900. Serial No. 29,560. (No model.)

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Be it known that I, OSCAR L. KLEBER, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Transmitters, of which the following is a specification.

This invention relates to improvements in thattype of transmitting mechanismsin which the impulse or circuit-governing disks are automatically manipulated and which normally are held inert and adapted to be set to an operative condition by key -levers that 'carry the different characters, letters of the alphabet, numerals, rbc.

In its generic nature my invention comprehends a continuously-operating driving means, a circuit-controllin g member carrying the required contact-points for a predetermined arrangement adapted to be moved into engagement and set in motion by the driving means, but normallyheld out of an operative position, and a key-lever connected with the said controlling member arranged when depressed to set the said controller member into position to be moved by the driving means until it has efi'eoted the desired electrical impulse and which automatically again resumes its inert or non-contact-making condition.

My invention in its complete make-up comprehends a rotary non-electric drive-roll common to the entire series of circuit-controlling devices, a series of independently-operating circuit-controlling devices, each comprising a disk having a predetermined contact making and breaking set of points, an insulated disk to which the said contact making and breaking disk is secured, held to frictionally engage the drivingroll and to be rotated thereto and having one or more peripheral indentations whereby when any one of the said indentations is brought into register with the driving-roll the insulated disk Will become disengaged therefrom, a key-lever cooperatively connected with the disk, and means for adjusting the insulated disk independent of the circuit-controlled disk being also provided for shifting the said insulated disk When moved by key-lever action.

In its subordinate features the invention consists in certain details and peculiar combination of parts, all ot' which Will hereinafter be fully described, and particularly pointed out in the appended claims, reference being had to the accompanying drawings,in Which- Figure l is an inverted perspective View of the transmitting means constructed in accordance with my invention. Fig. 2 is an end elevation, parts being in section, of the same. Fig. 3 is a transverse section taken substantially on the line 3 3 of Fig. 2. Figs. 4 and 5 are detail views illustrating several diiferent circuit making and breakingdisks, hereinafter specifically referred to.

Referring now to the accompanying drawings, in which like characters indicate like parts in all the figures, 1 indicates a suitable supporting-frame of appropriate design. In the drawings the bed portion ln of the frame has a series of pendent brackets 2, upon each of which is pivotally mounted a key-lever 3. Each key-lever 3 cooperates with a set of circuit-controlling devices. Each set ot' circuitcontrolling devices and the key-levers therefor operate independent of the others, and a detailed description of one set of such devices Will. suflice for all.

Referring now more particularly to Figs. 2 and 3, it will be seen the key-lever 3 has a rearwardly-extending arm 3, upon Which is mounted a circuit-controlling disk 4, said disk being held to turn upon the stud-screw a, that secures it to the arm 3.' The disk 4 has a series of radial teeth 4n and a number of elongated radial projections 4b, which lie in the same annular plane With the teeth 4.

5 designates a contact-making spring made fast to a metallic bar 6 and having its end 5 arranged to lie in the path of movement of the teeth 4il and projections 4b, the said end being, however, iixedly held from engaging with anyother part of the disk 4 by means of the stop-rod 7, that extends the full length of the frame l and is rigidly supported from the bar 6 by the fingers 7, which project for- Wardly from the said bar G. The radiallyprojecting teeth 4 and the lugs 4b are of such numberand relatively so disposed that a complete revolution of the disk 4 will send such electrical impulse to the main line as will produce a certain Morse character at the receiving end. For example, using the Morse code, should the lever 3 (shown in Fig. 2) have the numeral 9, the disk correspond- IOC vIO

ing with the said lever will have two teeth 4a and three elongated projections 4b,lthe teeth making short contacts and creating'quick iinpulses, (d0ts,) while the projections 4b make long circuits and extended impulses, (dashes.) Hence a colnplete rotation of the disk 4 (shown in Fig. 4) would produce such makes and breaks for the line circuit as to produce being the number 9 in the Morse characters, at the receiver.

Held iiatwise against one side of the disk 4 and in a Africtional engagement therewith sufficiently tight to cause the disk 4 to rotate with it is a larger disk or wheel 8, of insulated material, said disk having a peripheral opening Sn. This disk 8 is held tightly against the disk 4 by means of the spring clamp-plate 9, mounted upon the screw a and having its ends formed into lips 9a, that lap over the inner edges of the disk or wheel`8, as shown.

10 indicates a driving-roller consisting of a central met-al or wooden core 10b and a yielding non-electric covering 10a, preferably rubber. This roller 10 extends the full length of the entire transmitter mechanism, it being mounted at the ends in suitable bearingbrackets 11, pendently projected from the bed l, and one end of the said roller 10 has a pulley 10C, which receives a drive-belt to which motion is imparted by any suitable electromechanical means.

The roller 10 is so mounted relatively to all the wheels 8 as to engage with the peripheral edge thereof, and when thus engaged the rotary motion of the roller 10 will serve to rotate the wheels 8 and by reason of the tight frictional-contact of the said disks S with the disk 4, and the said disk 4 will be caused to rotate with the disk S and by reason of its rotation create certain electrical impulses in the main line.

The disk 8 vis -normally held from rotation, and for such purpose it has a peripheral de'- pression or concavity 8a, which concavity when brought into register` with the roll 10 breaks frictional contact between the said roll 10 and the disk 8, and thus While the roll 10 continues in its rotation the disk 8 remains stationary.

Ordinarily all of the disks 8 of the entire keyboard are held with their concavities 8 in line with the roll 10,and when any one of the disks 8 is shifted to frictionally engage the roll 10, which operation is effected by depressing its coacting key-lever, said shifted disk will be held in an operative positionthat is to say, to turn with the roll 10.

The ymeans employed by me for setting the disks 8 into an operative position forms an essential feature of my invention.

By refer-ring now more particularly to Fig. 2 of the drawings it will be noticed the insulated disk 8 has a laterally-projecting lug 80, adapt-ed to engage with the pendently-held lng 12, such lug being relatively so disposed to the axis of the disk 4 as to prevent rotation of the disk 8 in the direction indicated by the arrow X in Fig. 2. By thus arranging the several parts it is manifest that by depressing the key-leyer 3 the rear end of such lever will tend to carry the disks 4 8 upward; but as the lug engages the members 12 it follows that while the disk 4 moves up with the inner end of the lever 3 when the rear end of the said lever is swung up the disk 8 will be caused to turn slightly upon the face of the disk 4 and to the position shown in dotted lines in Fig. 2. This adjustment brings the peripheral edge of the disk 8 into frictional contact with the roll 10, which roll then rotates the disk 8 and by reason of the frictional contact of such disk 8 with the disk 4 the disk 4 will also rotate and by reason of its rotation serve to send the desired impulses into the contact member 5. As the disks 8 4 are thus rotated, the lug 80, when the disks have about made a'complete revolution, will engage the front edge .of the lug 12 and pass over the same, as the pressure on the disk 8 will be such as to depress the two disks S 4, together with .the rear end of the lever 3, sufficiently to allow the lug 8O to pass over the front edge of the member 12, and to facilitate the passing of the lug 8O over the said member 12 the front edge of the member 12 may have a springy sur-face, as indicated by 12a in the drawings. the disk 4 the disk 8 isgradually made to assume its concentric position on the disk 4 by reason of its engagement with the roll 10, which roll moves in a fixed circle.

In some instances the characters to be trans mitted are made by a series of short impulses-w say four dots for the letter Il In this event a double set of dot-making projections In its rotation with IOG are formed upon the disk 4, each set being disposed at d ametrically opposite points upon the peripheral edge `of the said disk 4. In this latter case the disk 8, coperating with such disk 4, is made with two depressions or concavities 8 and at diametrically opposite. points to prevent unnecessary turning of the disks 8 v4, it being understood .that in this latter case the said disk 8 is also provided with two correspondingly-arranged lugs 80.

For the letter T, indicated telegraphically by a single dash, three dash projections equally spaced upon the perimeter of the disk 4 are used, and the coacting disk 8 for such disk 4 is provided with three concavities or peripheral depressions arranged intermediate the dash projections upon the disk 4, andvin this event the said disk 8 is provided with three lugs.

From the foregoing description, taken in connection with the accompanying drawings, it is thought that the complete operation of my invention and its advantages will be readily understood by those skilled in the art to which it appertains.

The details of construction shown in the drawings illustrate a preferred arrangement of parts only, and I desire it understood that I do notlimit myself to such special construc- IIO tion of parts, as the same may readily be modified without departing from the scope of the appended claims. For example, all of the spring fingers or brushes may be in the nature of rigid metallic iin gers ixedly secured to the bar 6, and the said bar 6 in such arrangement may have a rocking motion and be provided with a platinum or other contact-making point adapted when it is rocked by reason of the disk 4 to engage the iiXedly-held terminal.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

l. A transmitter of the character described, comprising a continuously rotating power spindle or roll, a pivoted key-lever, a contactmaker, a make-and-break disk, operating in harmony with the contact-maker rotatably mounted upon the lever, a second dielectric disk, also mounted upon the lever, means for holding the two disks in frictional contact, the said second or dielectric disk being arranged to cooperate with the power-roll, and when in the normal position to remain disengaged from the roll, and means for automatically shifting the dielectric disk to engage the power-roll to be rotated thereby when the key-lever is depressed and the two disks will move in one direction in unison, for the purposes specified.

2. The combination with the frame, the keylever 3, pivotally mounted thereon, the driveroll 10, and the contact-maker 5 of the makeand-break disk 4, rotatably mounted on the lever 3, a second or dielectric disk 8, held in frictional contact with the disk 4, to be swung therewith by lever action, said disk 8 having a rotary motion independent of the disk 4, and having cut-out or peripheral depression to oppose the roll 10 at proper times, a Xedlyheld post 12, and a stud projected laterally from the disk 8, adapted to engage post 12, and impart a partial backward rotation to the disk 8, as the said disk 8, together with the disk 4, is swung up by the action of the keylever, as specified.

OSCAR L. KLEBER.

Vitnessesi T. E. MoOAUsLAND, D. J. CABLE. 

